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Mining Galleries
An adit (from Latin ''aditus'', entrance) is an entrance to an underground mine which is horizontal or nearly horizontal, by which the mine can be entered, drained of water, ventilated, and minerals extracted at the lowest convenient level. Adits are also used to explore for mineral veins. Construction Adits are driven into the side of a hill or mountain, and are often used when an ore body is located inside the mountain but above the adjacent valley floor or coastal plain. In cases where the mineral vein outcrops at the surface, the adit may follow the lode or vein until it is worked out, in which case the adit is rarely straight. The use of adits for the extraction of ore is generally called drift mining. Adits can only be driven into a mine where the local topography permits. There will be no opportunity to drive an adit to a mine situated on a large flat plain, for instance. Also if the ground is weak, the cost of shoring up a long adit may outweigh its possible advantage ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Advanced Diploma In International Taxation
ADIT (the Advanced Diploma in International Taxation) is a professional qualification and credential, offered globally by the UK-based Chartered Institute of Taxation (CIOT) to international tax professionals. As of August 2021, there were more than 5,000 ADIT students, graduates and International Tax Affiliates in approximately 120 countries. The biggest employers of ADIT professionals are the “ Big Four”, major international law firms, industry and commerce, and revenue authorities. A candidate who successfully completes ADIT is awarded the ADIT credential. Candidates who wish to adhere to professional requirements by retaining an ongoing link with the CIOT can apply to become an International Tax Affiliate of the Chartered Institute of Taxation. This subscription package entitles the Affiliate to a number of benefits and resources, including the right to use the letters 'ADIT' after their name, discounts and priority access for online CIOT events, and access to the CIOT ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Great County Adit
The Great County Adit, sometimes called the County Adit, or the Great Adit was a system of interconnected adits that helped drain water from the tin and copper mines in the Gwennap area of Cornwall, in the United Kingdom. Construction started in 1748 and it eventually reached a length of over of a tunnel, providing drainage to over 100 mines at an average depth of . The adit was the brainchild of John Williams (born 1714) of Scorrier who was the manager of Poldice mine. Although work was started in 1748, it did not reach Poldice mine until the late 1760s. By 1778 the adit had been extended past Wheal Busy to Wheal Peevor, and another branch, known as the Consols Adit was driven west in the 1770s and 80s to drain the Consolidated Mines and United Mines. By 1792 a branch from Poldice extended to Wheal Unity. The portal of the adit is in the Carnon Valley below the hamlet of Twelveheads. In 1839, probably at its peak, it discharged over 14.5 million gallons (66 million litres) ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
North Wales
, area_land_km2 = 6,172 , postal_code_type = Postcode , postal_code = LL, CH, SY , image_map1 = Wales North Wales locator map.svg , map_caption1 = Six principal areas of Wales commonly defined to be North Wales, for policing, fire and rescue, health and regional economy. North Wales ( cy, Gogledd Cymru) is a region of Wales, encompassing its northernmost areas. It borders Mid Wales to the south, England to the east, and the Irish Sea to the north and west. The area is highly mountainous and rural, with Snowdonia National Park ( and the Clwydian Range and Dee Valley (), known for its mountains, waterfalls and trails, wholly within the region. Its population is concentrated in the north-east and northern coastal areas, with significant Welsh-speaking populations in its western and rural areas. North Wales is imprecisely defined, lacking any exact definition or administrative structure. It is commonly defined adminis ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Staveley, Derbyshire
Staveley is a town and civil parish in the Borough of Chesterfield, Derbyshire, England. Located along the banks of the River Rother, South Yorkshire, River Rother. It is (5 miles) northeast of Chesterfield, Derbyshire, Chesterfield, (5 miles) west of Clowne, Derbyshire, Clowne, (5 miles) northwest of Bolsover, (11 miles) southwest of Worksop and (13 miles) southeast of Sheffield. History Staveley was formerly a mining town with several large Coal mining, coal mines in and around the area, the closest being Ireland Pit (Ireland Colliery Brass Band is named after the colliery). However, the pit has closed, along with the others in the area. Staveley Miners Welfare on Market Street was built in 1893 as an indoor market hall by Charles Paxton Markham, for a time owner of Markham & Co. At that time, it was called Markham Hall in memory of his father. Markham played a large role in the industrial development of the area around Staveley. Through his company Markham & Co. and its suc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hollingwood
Hollingwood is a small village approximately four miles north east of Chesterfield, Derbyshire, England. Description Hollingwood and Barrow Hill were built in c.1900 when the Staveley Coal and Iron Company formed and built homes there for the workers. It is alleged that Hollingwood was the first village in the country to have hot running water via a ring main from a central boiler house in the village. This boiler house was shut down in the very early 1980s when gas and electric boilers became readily available. It is surrounded by Brimington (where the population is included), Barrow Hill, and Inkersall. Between Barrow Hill and Hollingwood runs the Chesterfield Canal which is currently being regenerated by the Chesterfield Canal Trust. The canal house at Hollingwood has been renovated as a visitor centre and a very popular cafe, as well as being the headquarters of the Trust. The remains of the entrance to the Hollingwood Common Canal, originally a navigable adit, can still be ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chesterfield Canal
The Chesterfield Canal is a narrow canal in the East Midlands of England and it is known locally as 'Cuckoo Dyke'. It was one of the last of the canals designed by James Brindley, who died while it was being constructed. It was opened in 1777 and ran for from the River Trent at West Stockwith, Nottinghamshire to Chesterfield, Derbyshire, passing through the Norwood Tunnel at Kiveton Park, at the time one of the longest tunnels on the British canal system. The canal was built to export coal, limestone, and lead from Derbyshire, iron from Chesterfield, and corn, deals, timber, groceries and general merchandise into Derbyshire. The stone for the Palace of Westminster was quarried in North Anston, Rotherham, and transported via the canal. It was reasonably profitable, paying dividends from 1789, and with the coming of the railways, some of the proprietors formed a railway company. It became part of the Manchester, Sheffield and Lincolnshire Railway company, and although there were ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Canal
Canals or artificial waterways are waterways or engineered channels built for drainage management (e.g. flood control and irrigation) or for conveyancing water transport vehicles (e.g. water taxi). They carry free, calm surface flow under atmospheric pressure, and can be thought of as artificial rivers. In most cases, a canal has a series of dams and locks that create reservoirs of low speed current flow. These reservoirs are referred to as ''slack water levels'', often just called ''levels''. A canal can be called a ''navigation canal'' when it parallels a natural river and shares part of the latter's discharges and drainage basin, and leverages its resources by building dams and locks to increase and lengthen its stretches of slack water levels while staying in its valley. A canal can cut across a drainage divide atop a ridge, generally requiring an external water source above the highest elevation. The best-known example of such a canal is the Panama Canal. Many ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hollingwood Common Canal
The Hollingwood Common Canal (alternatively the Hollingwood Common Canal Tunnel or the Hollingwood Common Tunnel) is a disused navigable coal mine adit which terminated at the Chesterfield Canal at Hollingwood, near Staveley, Derbyshire. History The Hollingwood Common canal tunnel was long, and measured high, with of water. Its water level was lower than that of the Chesterfield canal, requiring the trans-shipment of coal at a wharf constructed at the terminus. The water level in the tunnel was maintained lower than the canal by a culvert that ran beneath the canal. The wharf was on the old line of the Chesterfield Canal, prior to the 1892 cut being constructed. The entrance to the tunnel is still visible, though is gated off. Boats used were loaded underground within the coal mine the tunnel served; these boats were long and wide, and held seven cones or boxes containing twenty to twenty two hundredweight of coal each. Remains The wharf where the coal was transhipped was ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cornwall
Cornwall (; kw, Kernow ) is a historic county and ceremonial county in South West England. It is recognised as one of the Celtic nations, and is the homeland of the Cornish people. Cornwall is bordered to the north and west by the Atlantic Ocean, to the south by the English Channel, and to the east by the county of Devon, with the River Tamar forming the border between them. Cornwall forms the westernmost part of the South West Peninsula of the island of Great Britain. The southwesternmost point is Land's End and the southernmost Lizard Point. Cornwall has a population of and an area of . The county has been administered since 2009 by the unitary authority, Cornwall Council. The ceremonial county of Cornwall also includes the Isles of Scilly, which are administered separately. The administrative centre of Cornwall is Truro, its only city. Cornwall was formerly a Brythonic kingdom and subsequently a royal duchy. It is the cultural and ethnic origin of the Cornish dias ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mining In Cornwall And Devon
Mining in Cornwall and Devon, in the southwest of England, began in the early Bronze Age, around 2150 BC. Tin, and later copper, were the most commonly extracted metals. Some tin mining continued long after the mining of other metals had become unprofitable, but ended in the late 20th century. In 2021, it was announced that a new mine was extracting battery-grade lithium carbonate, more than 20 years after the closure of the last South Crofty tin mine in Cornwall in 1998. Historically, tin and copper as well as a few other metals (e.g. arsenic, silver, and zinc) have been mined in Cornwall and Devon. Tin deposits still exist in Cornwall, and there has been talk of reopening the South Crofty tin mine. In addition, work has begun on re-opening the Hemerdon tungsten and tin mine in south-west Devon. In view of the economic importance of mines and quarries, geological studies have been conducted; about forty distinct minerals have been identified from type localities in Cornwa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nevada
Nevada ( ; ) is a U.S. state, state in the Western United States, Western region of the United States. It is bordered by Oregon to the northwest, Idaho to the northeast, California to the west, Arizona to the southeast, and Utah to the east. Nevada is the List of U.S. states and territories by area, 7th-most extensive, the List of U.S. states and territories by population, 32nd-most populous, and the List of U.S. states and territories by population density, 9th-least densely populated of the U.S. states. Nearly three-quarters of Nevada's people live in Clark County, Nevada, Clark County, which contains the Las Vegas–Paradise, NV MSA, Las Vegas–Paradise metropolitan area, including three of the state's four largest incorporated cities. Nevada's capital is Carson City, Nevada, Carson City. Las Vegas is the largest city in the state. Nevada is officially known as the "Silver State" because of the importance of silver to its history and economy. It is also known as the "Battle ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Virginia City
Virginia City is a census-designated place (CDP) that is the county seat of Storey County, Nevada, and the largest community in the county. The city is a part of the Reno– Sparks Metropolitan Statistical Area. Virginia City developed as a boomtown with the 1859 discovery of the Comstock Lode, the first major silver deposit discovery in the United States, with numerous mines opening. The population peaked in the mid-1870s, with an estimated 25,000 residents. The mines' output declined after 1878, and the population declined as a result. As of the 2020 Census, the population of Virginia City was 787. History Peter O'Riley and Patrick McLaughlin are credited with the discovery of the Comstock Lode. Henry T. P. Comstock's name was associated with the discovery through his own machinations. According to folklore, James Fennimore, nicknamed Old Virginny Finney, christened the town when he tripped and broke a bottle of whiskey at a saloon entrance in the northern section of Gol ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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